Q2. What is the sum of the even-indexed binomial coefficients in the expansion of (a+x)n, which is represented by nC0 + nC2 + nC4 + ...?Mathematics — Mathematical Inductions and Binomial Theorem — Question 2 of 95A. 2n-1B. 2nC. 2n+1D. n2Practice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →